Document status: Refine; Use Enumerations in document model

[jvwong]

Background

These flags have evolved over time as we began to understand our user workflow and which ones were necessary to quickly categorize/filter documents. For instance, we needed a way to easily identify those to export to BioPAX and display on the homepage carousel.

The document model provides an enum status:

• requested: An author has submitted a request to edit the document
• approved: Biofactoid-team approves the document for editing
• submitted: The document to be complete
• published: The document has >=1 complete element
• trashed: This document should not be used further

Updates:

The status value should be more meaningful, attempt to describe some specific aspect of the document itself

• 1. requested and approved are not relevant any longer and redundant.
  • Suggest to collapse into initiated, more or less to say its none of the other
• 2. Change published
  • Change this to public, i.e. to export and show on homepage, Tweet etc
• 3. Reference these values via the static function in document model